Device for determining the amount of butter in milk



(No Model.)

J. T. RILEY. DEVICE FOR DETERMINING THE AMOUNT OF BUTTER IN MILK.

No. 437,133. Patented Sept. 23, 1890.

E m/ VENTOR A TTOHNEYS 3m: NORRIS PETERS co., FNOTO-LITNKL, wAsnmarou, n

UNITED STATES PATENT QFFICEg JOHN T. RILEY, OF \VEST UNION, IOW'A.

DEVICE FOR DETERMINING THE AMOUNT OF BUTTER IN MILK.

SPECIFICATION forming part of Letters Patent No. 437,133, dated September 23, 1890.

Applicationfiled February 3, 1890. Serial No. 338,981. (No model.)

To all whom it may concern:

Be it known that I, JOHN T. RILEY, of est Union, in the county of Fayette and State of Iowa, have invented a new and Improved Device for Determining the Amount of Butter in Milk orOream, of which the following is a full, clear, and exact description.

This invention consists in a novel device, substantially as hereinafter described, and pointed out in the claims, for measuring the butter value of milk or cream-that is, for determining the amount of butter in given quantities of milk or cream of different qualities.

Reference is to be had to the accompanying drawings, forming a part of this specification, in which similar letters of reference indicate corresponding partsin both the figures.

Figure 1 represents in elevation aface view of a device embodying my invention, and Fig. 2 a horizontal section of the same upon the line 00 w in Fig. 1.

The frame of the device may be of different shapes or be variously constructed, but is here shown as consisting of a lower horizontal piece A and an upright piece B, together with an inclined slideway piece or guide G, rising at an angle of forty-five degrees (more or less) to the piece A, and an upright scale-carrierD, extending upward from or near the base of the inclined slideway piece or guide 0, which is stationary, as is also the upright scalecarrier D, and therefore both virtually form an integral portion of the frame that might be a simple board. I

E is a lever pivoted, as at b, to or near the upper end of the inclined slideway piece or guide 0 and extending at its free end beyond the scale-carrier D, and F is a perpendicular piece or upright having ashelf d, upon which a tube containing the sample to be measured rests. This upright F, which crosses at its upper end the lever E, is fitted below to slide on or along the inclined slideway piece or guide 0, so that it will always preserve its upright posit-ionas, for instance, by a slide e, attached to said upright and fittingaslot f in and along the guide 0, or, which would be the same thing, fitted with a box to embrace in a sliding manner the guide 0. The lever the scale-carrier D and upright F are likewise slotted in direction of their length, as shown at h and 1', and said slotted parts or devices D and F are respectively connected with the slotted lever E by loose slides G and H, capable of moving up and down the slots in the uprights D and F and back and forth in the slot in the lever E. Of course in this instance, too, sliding boxes embracing the uprights D and F and lever E may be substitued for the slides and slots, just as it is the right of every mechanic to place aguid'ing-surface inside or outside, it only being necessary that the devices or sliding connections G and H are free to move up or down the uprights D and F as well as back and forth along the lever E. The one of these sliding devices G may be termed a level, and the other one H an index for operation in connection with a scale I on the upright D.

A spring S serves to hold the lever E up to a horizontal position.

To make a measurement of the butter Value of milk or cream, I take a sample of the milk or cream in a glass tube and churn the contents and reduce the butter portion of the sample to oil by any of the well-known systems or means. The oil of course rises to the top of the tube and represents the butter which was in the milk or cream. This tube I place upon the shelf d of the upright F to measure the quantity of butter contained in it, as represented by the oil, which at 100 (indicated on the scale I in the operation of the apparatus) is par, or, in other words, the amount indicated by the unit of measure, that in some localities is one inch deep in a pail or circular measureof twelve inches in diameter, will, by the indication of the oil in the sample at 100 on the scale I, show that the amount of milk or cream in the pail will make correct per cent. of the butter value of the milk or cream when this occurs. This difficulty my invention overcomes, as will be evident from the operation of the apparatus.

To measure a sample, I place the sampletube bottom down on the horizontal shelf (1 of the upright or sample tube-carrier F and slide the latter up or down on the inclined guide C until the top of the oil in the tube is in line with the level G when the lever E is horizontal. The lever E is then depressed until the level G is drawn down the upright F to the bottom of the oil in the tube, when the index II will mark, as it is moved by the lever E down or on the scale I, the percentage of oil or butterin the tube. Now, supposing the sample-tube to be only partly or short filled, it will be necessary to adjust the upright F, carrying the tube, farther up the inclined guide C, thus bringing the tube nearer the pivot I) of the lever than if the tube were correctly or long filled, in orderthat the oil in the tube be brought to its first position that is, with its top in line with the level G when the lever E is up to its horizontal or extreme upward position; and, again, on the other hand, if astill deeper or longer filled tube be used it will be necessary to adjust the upright F still farther down the inclined guide C to bring the top of the oil in it inline with the level G before the latter is moved down. To illustrate this and the necessary depression of the lever E to indicate by the index II on the scale I a correct measurement in each case, let us suppose the dotted lines 1, 2, and 3 to represent tubes of different length which have been filled up to the point indicated by the letter-m in each case from milk or cream of like quality. These tubes will necessarily have to be set up or down the inclined guide C by the adjustment of the upright F to bring the top of the oil or point on in line with the level Gr when the lever E is in its raised position. The samples contained in these tubes being greater or lesser in quantity, the amount of oil representing the butter in them will vary in depth accordingly as the tubes are long or short filled, the nearer the tubes approach the pivot b of the lever E the smaller the sample and the less the oil contained within them, and the farther they are removed from the pivot Z) the larger the sample and the greater the depth of oil in them; but the same percentage of oil will be indicated for them on the scale I by lowering the lever E to bring the level G to the bottom of the oil in either of the tubes, as clearly indicated by the dotted radial line at drawn from the pivot b as a center.

Ilaving thus described my invention, what I claim as new, and desire to secure by Letters Patent, is-

1.. In a device for determining the amount of butter in milk or cream, the combination of an inclined guide, a scale-carrier at the lower end of the guide, a lever pivoted at the upper end of the guide, and a sample-tube carrier adapted to slide along the guide, substantially as specified.

2. In a device for determining the amount of butter in milk or cream, the combination of an inclined slideway piece or guide, an upright or sampletube carrier adjustable up or down said inclined guide, a scale-carrier at or near the lower end of said guide, a lever pivoted at or near the upper end of such guide, and sliding connections between the tube-carrier and said lever and between the scale-carrier and the lever movable along the lever and up or down the tube-carrier and scale-carrier, respectively, substantially as specified.

3. In a device for determining the amount of butter in milk or cream, the combination, with the main frame, its stationary inclined guide 0, and stationary upwardly-projecting scale-carrier D at or near the lower end of said guide, of the upright or sample-tube carrier adjustable up or down said inclined guide, the lever pivoted at or near the upper end of such guide, the spring .9, controlling said lever, and the sliding connections G II, moving up ordown the tube-carrier and scalecarrier, respectively, and along the lever E, essentially as shown and described.

JOHN T. RILEY.

Witnesses:

E. B. SHAW, O. D. LATHROP. 

